Home / 5,392.28-8,088.40-3,419.88

Finding the Fourth Proportional to 5,392.28, 8,088.40 and 3,419.88

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Solution

The fourth proportional to 5,392.28, 8,088.40 and 3,419.88 is: 5,129.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,392.28 : 8,088.40 = 3,419.88 : x
  2. Step 2: Convert to fraction form
    5,392.28/8,088.40 = 3,419.88/x
  3. Step 3: Cross multiply
    5,392.28x = 8,088.40 × 3,419.88
  4. Step 4: Simplify right side
    5,392.28x = 27,661,357.39
  5. Step 5: Solve for x
    x = 27,661,357.39/5,392.28
  6. Step 6: Final answer
    x = 5,129.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.